- Obote-Odora Alex
- Oby Obyerodhyambo
- Occupy COP17
- Ochieng M. Khairallah
- Ochieng Rapuro
- Odenda Lumumba
- Odhiambo Orlale
- Odhiambo T Oketch
- Odile ASIM
- Odj
- Odomaro Mubangizi
- Odomaro Mubangizi and Vick L. Ssali
- Odora-Obote Alex
- Oduor Ong'wen
- Office of the Legal Counsel of the African Union
- Office of the United Nations High Commisssioner for Human Rights
- Ogou Bastien
- Ogunjimi James Taiwo
- Oil in Uganda
- Oilwatch Africa
- Okachikwu Dibia
- Okello Oculi
- Okeoma Ibe
- Okeoma Ndidi Ibe
- Okiya Omtatah Okoiti
- Okodili Ndidi
- Okoth Osewe
- Okumephuna Chukwunwike
- Okwa Morphy Enebeli
- Ola Shahba